package com.atguigu.gulimall.member.exception;/**
 * 
 * @ClassName UsernameException
 * @Description 自定义用户名异常
 * @Author xufb
 * @Date 2023/10/23 11:22:43
 * @Version 1.0
 */
public class UsernameException extends RuntimeException{
    public UsernameException() {
        super("存在相同的用户名");
    }
}
